Apparatus for controlling the winding of web material on a dye beam

ABSTRACT

This specification discloses apparatus for controlling the winding of web material on a dye beam, wherein the tension on the material is reduced as the material increases in diameter and the opposite outer edges of the material are prevented from curling and/or necking as the material is wound upon the dye beam.

[111 r 3,844,502 [451 Oct. 29, 1974 .m a h s n e b 0 APPARATUS FORCONTROLLING THE a t. S

WINDING OF WEB MATERIAL ON A DYE BEAM Paul Charles Toy, Jr., Exeter,R.l.

Assignee: Marshall and Williams Company,

M t e n 0 r a A [75] lnventor:

Providence, RI. Primary Examiner-John W. Huckert Feb. 12, 1973 Appl.No.: 331,466

Assistant Examiner-John M. Jillions [22] Filed:

Attorney, Agent, or FirmWilliam Frederick Werner ABSTRACT Thisspecification discloses apparatus for controlling the winding of webmaterial on a dye beam, wherein the tension on the material is reducedas the material [52] US. 242/67.l R, 242/68.4,'242/75.5l [51] Int. B65h17/02, B65h 23/00 [58] Field of Search............. 242/75.5, 75.51-,75.53,

26/54; 28/1 CF increases in diameter and the opposite outer edges of thematerial are prevented from curling and/or necking as the material iswound upon the dye beam.

References Cited UNITED STATES PATENTS 3 Claims, 9 Drawing Figures3,268,142 Macomson.............................. 26/54 apparent in partand be pointed out in part in the fol- APPARATUS FOR CONTROLLING THEWINDING OF WEB MATERIAL ON A DYE BEAM STATEMENT OF INVENTION Thisinvention relates to take-up drums, batchers or dye beams and moreparticularly to dye beams upon which material iswound in preparation fora dying operation.

BACKGROUND OF THE INVENTION v In prior processes of dying material woundupon a drum it was common practice and necessary to heat set double knitmaterial prior to winding the material upon a dye beam.

The heat set was necessary to provide some rigidity in the material toprevent necking and/or curling of the opposite sides of the web materialas it was being wound upon the dye beam.

The heat set in the material created a severe problem for uniform dyingof the batch of material wound upon the dye beam because the heatchanged the physical characteristics of the synthetic'yarn knitted intodouble knit material.

The necking and curling created unevenness in the lay of the wind of thematerial upon the dye beam 50 that in beam dying the material dyedunevenly along the opposite side edges.

OBJECTS OF THE INVENTION It is therefore an object of the presentinvention to provide apparatus which will wind double knit material on adye beam in a manner to permit uniform dying of the material throughoutthe'entire width and depth of the web wound upon the dye beam withoutprior heat setting of the double knit material.

Another object of the present invention is to wind double knit materialupon a dye beam, in a manner, that the material is more tightly wound atthe core or beam surface, than on the outside layer, in a graduatingscale. The dye fluid will then pass from the core through the materialwith uniform dye flow due to the lessening of tension on each succeedinglayer of the web.

Still another object of the present invention is to eliminate so calledgrey spots in cloth created by a lack of dye fluid.

A further object of the present invention is to provide anip pressureroll load control.

And still'another object of the present invention is to maintain aconstant force at the point of tangency of the beam to the nip rollthrough'the arc of the beam lever.

Another object of the present invention is to drive a 'beam and alsodrive a nip roll in surface contact with the beam, so that, the nip rollassists in driving the beam as the material builds up a load factoronthe beam. i i

And still another object of the invention is to have the beam arms,which support the dye beams, adjustable toward and away from each other,so as to accommodate dye beams of various lengths.

Other objects of the present invention will become lowing specificationand claims.

Referring to the drawings in which similar characters of reference referto like parts:

FIG. 1 is a fragmentary perspective viewof the right side of the new andimproved apparatus for controlling the winding of a web of material on adye beam;

FIG. 2 is a fragmentary perspective view of the right side of the newand improved apparatus for controlling the winding of a web of materialon a dye beam and is an extension of FIG. I;

FIG. 3 is a right side elevational view of FIG. 1;

FIG. 4 is a fragmentary rear elevational view of FIG. 1;

FIG. 5 is a fragmentary rear elevational view of FIG. 2',

FIG. 6 is a left side elevational view of the drive control mechanism;

FIG. 7 is a fragmentary right side elevational view looking at the beamshaft;

FIG. 8 is a rear elevational view, taken on line 8-8 of FIG. 7; and

FIG. 9 is a diagrammatic view of the electrohydraulic system.

In proceeding with this invention, reference is made to the drawings,wherein, (see FIG. 1 and 2) apparatus for controlling the winding on abeam is physically attached to the end of a tenter frame. The enteringend of the tenter frame is not shown. The delivery end of the tenterframe is shown. The drawings are to be viewed as if the viewer wasstanding at the entering end of the tenter looking toward the deliveryend of the tenter with the apparatus for controlling the winding on abeam, attached thereto.

It is to be understood, that the present invention is Reference is nowmade to FIGS. 1, 2 and 3 wherein reference numeral 11 indicates a floor,12 and 12A indicate concrete foundations upon the floor and- 13,generally indicates,a platform.

The platform 13 comprises a plurality of foot'pads 9 placed upon floor11 in spaced relation. A front channel 8 is fastened, as by welding, tothe plurality of pads 9. A rear channel 7 is also fastened to theplurality of pads 9. A front I-beam 6 and a rear I-beam 5 are fastenedto the plurality of pads 9. A front plank 4 is fastened to and overliesI-beam 6. A rear'plank 3 is fastened to and overlies I-beam 5. Edges 2,2A of beams 6 and 5, respectively, form a guided pathway, generallyindicated at (FIG. 1 and 2). A'rear cover 1 is fastened to rear plank 3and rear channel 7. A front cover IA is fastened to front plank 4 andfront channel 8.

A right side channel 7A and a left side channel 5A are fastened to theopposite ends, respectively, of channels 7 and 8. In this manner, aunitary platform 13 is provided and placed against the concretefoundations 12,12A shown at 15, 15A, respectively. Platform 13 may befastened to floor 11. With continued reference to FIGS. 1 and 2, arightside delivery stand 16 is fastened to concrete foundation 12. Aleft side delivery stand 16A is fastened to concrete foundation 12A. De-

spectively, in bearings 21, 21A. Pillow block bearings 23, 23A, fastenedrespectively, to tops 24, 24A rotatably support stub shafts 22, 22A,respectively. Pivot sensing arms 25, 25A provided integrally with shoes26, 26A are mounted for free pivotal movement upon stub shafts 22, 22A,respectively.

With reference to all the Figures, a strip roll 27 provided with a striproll shaft 28 is rotatably mounted on opposite ends in pivot sensingarms 25, 25A.

Similarly, a nip roll 30 provided with a nip roll shaft 31, is rotatablymounted on opposite ends in pivot sensing arms 25, 25A. Delivery standbacks 20, 20A are provided with clearance orifices 32, 32A for striproll shaft 28 and clearance orifices 33, 33A for nip roll shaft 31,respectively.

An idler gear 35 is fastened to a shaft 36 rotatably supported in pivotsensing arm 25. A main drive gear 40 and a pulley 41 are fastened tostub shaft 22.

With reference to FIGS. 1, 2 and 4, a bracket 42 is fastened to deliverystand back 20. A tenter drive motor 43 provided with a motor shaft 44 isfastened to bracket 42. A speed reducer 45 provided with an input shaft46 and an output shaft 47 is fastened to bottom plate 48 of deliverystand 16. A coupling 49 connects motor shaft 44 to input shaft 46.

With reference to FIGS. 1, 2, 3, 4, 5 and 6, delivery stand backs 20,20A are provided respectively, with tenter shaft bearings 50, 50A. Atenter drive shaft 51 rotatably mounted in tenter shaft bearings 50, 50Ais provided tenter shaft drive sprocket 52 and an intermediate sprocket53. Output shaft 47 provided with a chain sprocket 54 fastened thereon,is drivably connected to tenter shaft drive sprocket 52 by means of achain belt 55.

variable speed reducer bracket 56 is fastened to front side 57 ofdelivery stand 16. A variable speed reducer 58 provided with a drivenshaft 60 and drive shaft 61 is fastened to bracket 56. A chain belt 62rotatably connects intermediate sprocket 53 with a pulley sprocket 63fastened to driven shaft 60. A chain belt 65 rotatably connects sprocket41 to drive sprocket 66 fastened to drive shaft 61.

With reference to FIGS. 1, 2, 3, 4, 5 and 6, pads 70, 70A are fastened,respectively, to backs 71, 71A of delivery stands 16, 16A, respectively.Mounts 72, 72A are fastened, respectively, to pads 70, 70A. Load cells73, 73A, having plungers 74, 74A, respectively, are fastened to mounts72, 72A, respectively. Plungers 74, 74A are actuated, respectively, byshoes 26, 26A.

Two tenter clip chain drive sprockets 80, 81 are splined to tenter driveshaft 51. Two tenter clip chains 82, 83 operatively connected to atenter frame (not shown), are operatively connected, respectively, totenter clip chain drive sprockets 80, 81. The tenter rails 84, 85 of thetenter frame are schematically illustrated for purposes of orientation.The cross screw 87 of the tenter frame is rotatively mounted on oppositeends in bearings 88, 88A fastened respectively, to delivery stand backs20, 20A. The right hand end plate 90 of the tenter frame is shown inFIG. 4 and the left hand end plate 90A is shown in FIG. 5.

Cross screw nuts 91, 92 (shown respectively in FIGS. 1, 2 and 4) arefastened, respectively, to left hand end plate 90A and right hand endplate 90. Rotation of cross screw 87 moves end plates 90, 90A toward andaway from each other.

A center bearing block 101 comprises a body having two depending legs98, 99 and an upright support with a groove consisting of a horizontalsurface 102 and a vertical surface 103. Two flange bearings 104 arefastened, respectively, in legs 98, 99. Center bearing block 101 isremovably fastened in guided pathway 100 with groove surfaces 102, 103slidably engaging edge 2A. Similarly, a second groove is provided inblock 101 and said groove engages edge 2, as will presently appear.

Similarly, a right side bearing block comprises a body having twodepending legs 113, 114 and a right side upright support 111 with afront groove 102 and a rear groove 103. Two flange nuts 112, 112A, eachprovided with the same hand screw thread 115, are fastened,respectively, in legs 113 and 114. Right side bearing block 110 isslidably mounted in guided pathway 100 with front groove 102 slidablyengaging edge 2 and with rear groove 103 engaging edge 2A.

Similarly, a left side bearing block comprises a body having twodepending legs 123, 124 and a left side upright support 121 with a frontgroove and a rear groove 126. Two flange nuts 122, 122A each providedwith the same hand screw thread 127, are fastened, respectively, in legs123, 124. Left side bearing block 120 is slidably mounted in guidedpathway 100 with front groove 125 slidably engaging edge 2 and with reargroove 103 engaging edge 2A.

Two oppositely located structural steel channels 130, 131 are fastenedtogether by means of tie bars 132, 133 (see FIGS. 1, 2, 7 and 8) to forma right side beam arm, generally indicated by reference numeral 135.Channel is provided with a sliding bearing having a body 136, a flange137, a bearing surface 138, and a keyway to accommodate key 140. Channel131 is provided with a sliding bearing having a body 141, a flange 142,a bearing surface 143 and a keyway to accommodate key 140. Flanges 137and 142 are fastened, respectively to channels 130, 131 as by means ofscrews 145. A spacer bearing 146 provided with a bearing surface 147 anda keyway to accommodate key is rotatably mounted in right side uprightsupport 111.

Two oppositely located structural steel channels 150, 151 are fastenedtogether by means of tie bars 152 to form a left side beam arm,generally indicated at 155. Channels and 151 are provided with slidingbearings similar to those shown and described for channels 130, 131 anda spacer bearing similar to bearing 146 is rotatably mounted in leftside upright support 121.

Similarly, two oppositely located structural steel channels 160, 161 arefastened together by means of tie bars 162 to form a center beam arm,generally indicated at 165. Channels 160, 161 are provided with twosupport bearings 166, 167 provided with keyway to accommodate keyway 140are fastened, respectively, in channels 160, 161. A center spacerbearing 168 provided with a bearing surface (similar to surface 147) anda keyway to accommodate key 140 is rotatably mounted in center uprightsupport 105.

A right end stand, generally indicated at 170, comprises an outside wall171 and an inside wall 172. Similarly, a left end stand, generallyindicated at 175 comprises an inside wall 176.

Two beam bearings 177, 178 are fastened, respectively, in inside wall172 and inside wall 176. A beam shaft 180 provided with a key 140 isoscillatably mounted in beam bearings 177, 178. Beam shaft 180 supportsand is fastened to, by means of keyways in,

sliding bearings 136,141 and spacer bearing 146 for right side beam arm135, and sliding bearings and a spacer bearing in left side beam arm155, and sliding bearings and a spacer bearing incenter beam arm 165.

Two beam arm adjustment screw bearings 181, 182 are fastenedrespectively, in inside wall 172 and inside wall 176. A beam armadjustment screw, generally indicated at 185, consists of a right handthread section 186 and a left hand thread section 187 and is rotatablymounted on opposite ends in beam arm adjustment Beam arm adjustmentscrew 185 is provided with a driven pulley 190. A short shaft 191 isrotatably mounted on opposite sides in right end stand 170 throughbearings 192, 193. A drive pulley 194 is fastened to shaft 191. A belt195 connects drive pulley 194 to driven pulley 190. Short shaft 191 isrotated by a source of power such as a hand wheel 196 or a motor (notshown).

A chuck shaft 210 is rotatably and slidably mounted in channels 130,,131 by means of bearings 211, 212, respectively, A movable chuck plate213 is fastened to chuck shaft 210. A clevis bracket 215 provided withtwo parallel arms 216, 217 is fastened to channel 130.

A positioning arm'2l8 provided with bearing 220 is pivotally connectedto parallel arms 2 16, 217 by means of a pintel 221. A connector block222 is pivotally connected to positioning arm 218 by means of a stubshaft 223. One end of chuck shaft 210 is slidably and rotatablyconnected to connector block 222 so as to move chuck shaft 210 towardand away from channel 131. A hydraulic beam chuck cylinder 233 providedwith a piston rod 224 is fastened to channel 131. A knuckle 225pivotally connected to positioning arm 218 by means of shaft 226 isalso-fastened to piston rod 224. An electrical switch 230 fastened tochannel 131 is provided with two buttons 231, 232. Switch 230 iselectrically connected to servo valve 234 (see FIG. which is con- 6 504Bwhich is fastened 10 channels 160, 161 (see FIG. 1).

In operation a dye beam 499 or dye core shown in dot and dash lines inFIGS. 1 and 2 is chucked or held between chuck plates and 250. The dyebeam, under the force of gravity, lies against nip roll 30. A web ofmaterial is held on opposite sides by the pin tenter clips formingtenter clip chains 82, 83. The cloth is led from the tenter clips understrip roll 27 and over nip roll 30 to be wound upon the dye beam. Motor495 is started so as to rotate chucks 213, 215 and thereby the dye beam.The tenter motor is simultaneously started so that the material leavingthe tenter will simultaneously be wound upon the dye beam.

The position of the dye beam in relation to the nip roll 30 iscontrolled by means of the right side beam arm 135, the left side beamarm 155 and beam arm hydraulic cylinder 504 forming part of anelectrohydraulic servo loop, (see FIG. 9). A servo valve 600 containsthe interface between the electrical and the hydraulic portions of thesystem. The electrical portion of the system provides the control. Thehydraulic portion of the system provides the power. The electrohydraulic servo valve 600 utilizes an electrical signal provided by a(PH) servotrol amplifier to control the flow rate of the hydraulic fluidto the beam arm positioning cylinder 504. The system pressure is heldcon- 7 stant.

Reference is directed to FIG. 9 where'the automatic mode is arranged asa closed loop feedback control system with proportional position andload control action.

- Toinitiate control, the operative preselects the nip nected tohydraulic pump 497 operatively connected to hydraulic beam chuckcylinder 233. Button 231 causes piston rod 224 through hydraulic pump497 to move in one direction and button 232 causes piston rod 224 tomove in an opposite direction so as to move chuck plate 213 toward andaway from channel 131.

l A speed reducer 240 provided with an upper shaft 241 and a lower shaft242 is fastened to channel 151. A motor 495 provided with a motor shaft243 is fastened to channel 151 with provision in channel 151 to allowshaft 243 to freely pass thereto. A pulley 244 is fastened to shaft 243.Lower shaft 242 provided with a pulley 245 is rotatably connectedtopulley 244 by means of a belt 246. Upper shaft 241 is rotatably mountedin bearing 247 fixed in channel 150. A nonsliding chuck plate 250 isfastened to shaft 241 directly opposite, so as to cooperate with,movable chuck plate A beam positioning cylinder 504 provided with apiston is fastened to the machine frame at- 504A. The outer end of thepiston is pivotally attached to aplate pressure by means of apotentiometer or command, to

the percentage of beam load applied against the face of the nip roll 30.This control establishes the desired servo amplifier command voltagewhich in turn positions the servo valve torque motor. With the servovalve positioned, a regulated flow of hydraulic fluid is supplied to thebeam arm hydraulic cylinder 504,

which'through the cylinder piston, moves the center beam arm 165 andthrough beam shaft 180, right side beam arm 135, left side beam arm andthe'dye beam held between the beam arms 135, 155,relative to the niproll 30.

The nip roll 30 is directly connected to the load cells through the pairof sensing arms 25, 25A, therefore,

when the beam load is varied by means of material wound thereon, thefeedback signal from the load cells is also varied. The feedback signalis sent to the BLH signal conditioner amplifier which indicates theactual percentage of nip load and simultaneously sends a conditionedsignal to the Pl-lamplifier. The PH amplifier takes the feedback signaland compares it to the input command signal as initially set by theoperative. Once compared, the difference between the signals (termederror") is then sent to the servo valve, which in turn varies the flowto the beam arm hydraulic cylinder 504 to change the dye beam position.This servo loop pro-' vides the necessary proportional position and loadcontrol action which insures that the web is continuously nipped at aconstant valve throughout the winding cycle.

Having shown and described a preferred embodiment of the presentinvention by way of example, it should be realized that structuralchanges could be made and other examples given without departing fromeither the spiritor scope of this invention.

What I claim is:

1. Apparatus for controlling the winding of web material on a dye beamcomprising a platform, a pair of beam arms Comprising a right side beamarm, and a left side beam arm, means pivotally connecting said right andsaid left beam arms to said platform at, respectively, one end thereof,a pair of clutch elements comprising a chuck shaft rotatably mounted insaid right side beam arm, a movable chuck plate fastened to said chuckshaft, a shaft rotatably mounted in said left side beam arm, anon-sliding chuck plate fastened to said shaft opposite to and alignedwith said movable chuck plate, to provide means to removably support adye beam therebetween, independent drive means rotatably connected toone of said pair of clutch elements to provide means to rotate a dyebeam, doffing means for moving one of said pair of clutch elementstoward and away from the other of said pair of clutch elements, a pairof stands positioned adjacent, respectively, said pair of beam arms, apair of pivot sensing arms, means pivotally mounting said pair of pivotsensing arms, respectively, in said pair of stands, a nip roll rotatablysupported on opposite ends in said pair of pivot sensing arms, a pair ofload cells, one for each of said pair of pivot sensing arms, meansfastening said pair of load cells, respectively, to said pair of stands,whereby, contact of said nip roll with a dye beam causes said pair ofsensing arms to actuate said pair of load cells, in direct relation, tothe increase in diameter of a dye beam, a beam positioning cylinder,having a piston, means fas: tening said cylinder in a stationaryposition and means pivotally connecting said piston to said pair of beamarms, an electro hydraulic closed loop feedback control system withproportional position and load control action containing said loadcells, a PH servo amplifier and BLH signal conditioner, a feedbacksignal voltage conduit between said load cells and servo amplifier andsignal conditioner, a voltage load input command means connected to saidservo amplifier and signal conditioner, a servo valve, an error signalvoltage connection between said servo amplifier and signal conditioner,said feedback signal and said voltage load input command being comparedin said servo amplifier and signal conditioner and the difference involtage passing an electrical impulse signal to said servo valve, aregulated flow conduit between said beam positioning cylinder and saidservo valve whereby said servo valve regulates the hydraulic fluid flowto said beam positioning cylinder to move said beam position cylinderpiston a selected distance, to vary the distance between said nip rolland a dye beam supported between said pair of beam arms.

2. Apparatus for controlling the winding of web material on a dye beamcomprising a platform provided with a guided pathway, a center beam arm,provided with an upright support, fixed in said guided pathway, a rightside beam arm, provided with an upright support, and a left side beamarm, provided with an upright support, means slidably mounting saidright and said left side beam arm, in said guided pathway, a beam armadjustment screw provided with a right hand thread and a left handthread, rotatably mounted in said center beam arm with said right handthread rotatably connected to said right side beam arm and said lefthand thread rotatably connected so said left side beam arm, meansrotatably connected to said beam arm adjustment screw to move said rightside beam arm and said left side beam arm toward and away from saidcenter beam arm, a beam shaft, keyed to said center beam arm uprightsupport, and keyed to both said right side beam arm upright support andto said left side beam arm upright support, a piston cylinder providedwith a piston, means fastening said piston to said center beam arm andsaid piston cylinder in a stationary position, a movable clutch platerotatably mounted in said right side beam arm, and means slidably movingsaid movable clutch plate toward and away from said right side beam arm,a non-slidable clutch plate rotatably mounted in said left side beamarm, to support a dye beam between said movable clutch and saidnon-slidable clutch plate, a motor fixed to said platform and having amotor shaft, means rotatably connecting said motor shaft to saidnon-slidable clutch plate to rotate said non-slidable clutch plate, aright side stand and a left side stand positioned adjacent said platformand aligned, respectively, with said right side beam arm and said leftside beam arm, a pair of pivot sensing arms pivotally connected,respectively, to said right side stand and said left side stand, a niproll rotatably mounted on opposite sides to said pair of pivot sensingarms, motor means rotatably connected to said nip roll to rotate saidnip roll, a pair of load cells fastened, respectively, to said rightside delivery stand and said left side delivery stand and aligned,respectively, for actuation by said pair of pivot sensing arms, and anelectro-hydraulic system including said pair of load cells forcontrolling movement of said nip roll by causing said piston to movesaid right side beam arm and said left side beam arm toward and awayfrom said nip roll.

3. In an apparatus as defined in claim 2, a strip roll rotatably mountedon opposite ends to said pair of sensing arms, a tenter drive shaftrotatably mounted on opposite ends to said right side delivery stand andto said left side delivery stand, said motor means rotatably connectedto said nip roll, having additional drive means to said tenter driveshaft, and to said strip roll, to drive said nip roll, strip roll andtenter drive shaft in relative relationship.

1. Apparatus for controlling the winding of web material on a dye beamcomprising a platform, a pair of beam arms comprising a right side beamarm, and a left side beam arm, means pivotally connecting said right andsaid left beam arms to said platform at, respectively, one end thereof,a pair of clutch elements comprising a chuck shaft rotatably mounted insaid right side beam arm, a movable chuck plate fastened to said chuckshaft, a shaft rotatably mounted in said left side beam arm, anon-sliding chuck plate fastened to said shaft opposite to and alignedwith said movable chuck plate, to provide means to removably support adye beam therebetween, independent drive means rotatably connected toone of said pair of clutch elements to provide means to rotate a dyebeam, doffing means for moving one of said pair of clutch elementstoward and away from the other of said pair of clutch elements, a pairof stands positioned adjacent, respectively, said pair of beam arms, apair of pivot sensing arms, means pivotally mounting said pair of pivotsensing arms, respectively, in said pair of stands, a nip roll rotatablysupported on opposite ends in said pair of pivot sensing arms, a pair ofload cells, one for each of said pair of pivot sensing arms, meansfastening said pair of load cells, respectively, to said pair of stands,whereby, contact of said nip roll with a dye beam causes said pair ofsensing arms to actuate said pair of load cells, in direct relation, tothe increase in diameter of a dye beam, a beam positioning cylinder,having a piston, means fastening said cylinder in a stationary positionand means pivotally connecting said piston to said pair of beam arms, anelectro hydraulic closed loop feedback control system with proportionalposition and load control action containing said load cells, a PH servoamplifier and BLH signal conditioner, a feedback signal voltage conduitbetween said load cells and servo amplifier and signal conditioner, avoltage load input command means connected to said servo amplifier andsignal conditioner, a servo valve, an error signal voltage connectionbetween said servo amplifier and signal conditioner, said feedbacksignal and said voltage load input command being compared in said servoamplifier and signal conditioner and the difference in voltage passingan electrical impulse signal to said servo valve, a regulated flowconduit between said beam positioning cylinder and said servo valvewhereby said servo valve regulates the hydraulic fluid flow to said beampositioning cylinder to move said beam position cylinder piston aselected distance, to vary the distance between said nip roll and a dyebeam supported between said pair of beam arms.
 2. Apparatus forcontrolling the winding of web material on a dye beam comprising aplatform provided with a guided pathway, a center beam arm, providedwith an upright support, fixed in said guided pathway, a right side beamarm, provided with an upright support, and a left side beam arm,provided with an upright support, means slidably mounting said right andsaid leFt side beam arm, in said guided pathway, a beam arm adjustmentscrew provided with a right hand thread and a left hand thread,rotatably mounted in said center beam arm with said right hand threadrotatably connected to said right side beam arm and said left handthread rotatably connected so said left side beam arm, means rotatablyconnected to said beam arm adjustment screw to move said right side beamarm and said left side beam arm toward and away from said center beamarm, a beam shaft, keyed to said center beam arm upright support, andkeyed to both said right side beam arm upright support and to said leftside beam arm upright support, a piston cylinder provided with a piston,means fastening said piston to said center beam arm and said pistoncylinder in a stationary position, a movable clutch plate rotatablymounted in said right side beam arm, and means slidably moving saidmovable clutch plate toward and away from said right side beam arm, anon-slidable clutch plate rotatably mounted in said left side beam arm,to support a dye beam between said movable clutch and said non-slidableclutch plate, a motor fixed to said platform and having a motor shaft,means rotatably connecting said motor shaft to said non-slidable clutchplate to rotate said non-slidable clutch plate, a right side stand and aleft side stand positioned adjacent said platform and aligned,respectively, with said right side beam arm and said left side beam arm,a pair of pivot sensing arms pivotally connected, respectively, to saidright side stand and said left side stand, a nip roll rotatably mountedon opposite sides to said pair of pivot sensing arms, motor meansrotatably connected to said nip roll to rotate said nip roll, a pair ofload cells fastened, respectively, to said right side delivery stand andsaid left side delivery stand and aligned, respectively, for actuationby said pair of pivot sensing arms, and an electro-hydraulic systemincluding said pair of load cells for controlling movement of said niproll by causing said piston to move said right side beam arm and saidleft side beam arm toward and away from said nip roll.
 3. In anapparatus as defined in claim 2, a strip roll rotatably mounted onopposite ends to said pair of sensing arms, a tenter drive shaftrotatably mounted on opposite ends to said right side delivery stand andto said left side delivery stand, said motor means rotatably connectedto said nip roll, having additional drive means to said tenter driveshaft, and to said strip roll, to drive said nip roll, strip roll andtenter drive shaft in relative relationship.